1 /******************************************************************************
2 *
3 * Copyright (C) 2015 Google, Inc.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18 #define LOG_TAG "hash_map_utils"
19
20 #include "osi/include/hash_map_utils.h"
21
22 #include <base/logging.h>
23 #include <string.h>
24
25 #include "osi/include/allocator.h"
26 #include "osi/include/log.h"
27 #include "osi/include/osi.h"
28
29 std::unordered_map<std::string, std::string>
hash_map_utils_new_from_string_params(const char * params)30 hash_map_utils_new_from_string_params(const char* params) {
31 CHECK(params != NULL);
32
33 std::unordered_map<std::string, std::string> map;
34
35 char* str = osi_strdup(params);
36 if (!str) return map;
37
38 LOG_VERBOSE(LOG_TAG, "%s: source string: '%s'", __func__, str);
39
40 // Parse |str| and add extracted key-and-value pair(s) in |map|.
41 int items = 0;
42 char* tmpstr;
43 char* kvpair = strtok_r(str, ";", &tmpstr);
44 while (kvpair && *kvpair) {
45 char* eq = strchr(kvpair, '=');
46
47 if (eq == kvpair) goto next_pair;
48
49 char* key;
50 char* value;
51 if (eq) {
52 key = osi_strndup(kvpair, eq - kvpair);
53
54 // The increment of |eq| moves |eq| to the beginning of the value.
55 ++eq;
56 value = (*eq != '\0') ? osi_strdup(eq) : osi_strdup("");
57 } else {
58 key = osi_strdup(kvpair);
59 value = osi_strdup("");
60 }
61
62 map[key] = value;
63
64 osi_free(key);
65 osi_free(value);
66
67 items++;
68 next_pair:
69 kvpair = strtok_r(NULL, ";", &tmpstr);
70 }
71
72 if (!items) LOG_VERBOSE(LOG_TAG, "%s: no items found in string\n", __func__);
73
74 osi_free(str);
75 return map;
76 }
77
hash_map_utils_dump_string_keys_string_values(std::unordered_map<std::string,std::string> & map)78 void hash_map_utils_dump_string_keys_string_values(
79 std::unordered_map<std::string, std::string>& map) {
80 for (const auto& ptr : map) {
81 LOG_INFO(LOG_TAG, "key: '%s' value: '%s'\n", ptr.first.c_str(),
82 ptr.second.c_str());
83 }
84 }
85